Finding the Fourth Proportional to 62,144.28, 85,790.88 and 42,107.04

Step by Step Solution

1. Step 1: Write the proportion equation
   62,144.28 : 85,790.88 = 42,107.04 : x
2. Step 2: Convert to fraction form
   62,144.28/85,790.88 = 42,107.04/x
3. Step 3: Cross multiply
   62,144.28x = 85,790.88 × 42,107.04
4. Step 4: Simplify right side
   62,144.28x = 3,612,400,015.80
5. Step 5: Solve for x
   x = 3,612,400,015.80/62,144.28
6. Step 6: Final answer
   x = 58,129.24